Jacopo Riboldi's Avatar

Jacopo Riboldi

@jriboldi.bsky.social

Lecturer in Atmospheric Dynamics at ETH Zurich 🇮🇹🇨🇭 Tackling climate research problems from a weather-centered perspective 🌦🌀🌡

667 Followers  |  244 Following  |  70 Posts  |  Joined: 30.11.2023  |  2.4148

Latest posts by jriboldi.bsky.social on Bluesky

We also computed analogs focusing only on the impacted region, but the large-scale circulation pattern was quite different from the event, so much that one wonders if it was still the same event.

19.11.2025 19:04 — 👍 0    🔁 0    💬 0    📌 0

Thanks for the shoutout!! In our case we showed that including information about the position of the low-level cyclone helped to improve precipitation in the analogs, probably because the moisture-bearing low-level flow was more constrained.

19.11.2025 18:52 — 👍 0    🔁 0    💬 1    📌 0

An interesting new project about the physical and dynamical processes behind extreme windstorms in present and future climate 🌬 at @unirdg-artcol.bsky.social

Consider applying if you are interested!

31.10.2025 12:25 — 👍 2    🔁 0    💬 0    📌 0

"Sycophancy essentially means that the model trusts the user to say correct things,” says Jasper Dekoninck, a data science PhD student at the Swiss Federal Institute of Technology in Zurich".

25.10.2025 07:24 — 👍 1    🔁 0    💬 0    📌 0
Video thumbnail

Cette carte est unique au monde. Après plusieurs mois de modélisation, AgroClimat2050 dévoile une 1ère mondiale : la biogéographie future (c’est-à-dire l’aire de répartition) de l’une des 🍎 les + consommées au monde (Golden) grâce à un modèle agroclimatique qui n'a pas d'équivalent en Europe.
1/7

14.10.2025 10:12 — 👍 476    🔁 248    💬 14    📌 19
EGUsphere - Storm Boris (2024) in the current and future climate: a dynamics-centered contextualization, and some lessons learnt

Storm Boris hit central Europe with extreme precipitation in September 2024: how will this event look like in a warmer climate? 🌧🌡

Many different, but equally correct answers can be given! Discover the nuances in our new work, now in open discussion at
egusphere.copernicus.org/preprints/20...

08.08.2025 19:21 — 👍 3    🔁 1    💬 0    📌 0

A question about causality: are the oceans intensifying heat inland, or are they warming as a result of the same circulation inducing heat over land? The second pathway is clear, the first not immediately obvious as sea temperature is less than land air temperature.

25.07.2025 06:52 — 👍 2    🔁 0    💬 0    📌 0

Esto no es un video del tifón, es un viejo video de una tormenta.

21.07.2025 14:26 — 👍 0    🔁 0    💬 0    📌 0
Video thumbnail

Bref coup de chaud mardi&mercredi associé a une dépression "pompe a chaleur" au large du Portugal #PlumeDeChaleur, puis probable mise en place d'un très puissant #DomeDeChaleur (fort anticyclone) pour la fin du moins de Juin avec persistance de chaleur extrême (Sud 🇫🇷).
Effrayant mais pas surprenant!

23.06.2025 19:47 — 👍 206    🔁 95    💬 9    📌 8

Yes and indeed these bullet points about inertia are nowhere to be found in the English version of Red Electrica.

Still interesting, however, that everything seems to have started from a solar power plant... and the exact cause not been found yet.

23.06.2025 20:32 — 👍 2    🔁 0    💬 2    📌 0
Post image

Interestingly yes, it seems. This is an excerpt from the conclusions (in Spanish, but I think the first sentence is still understandable).

23.06.2025 20:23 — 👍 3    🔁 0    💬 1    📌 0
Preview
Amid DOGE-induced turmoil, National Science Foundation in crisis The $9 billion agency, which exists solely to fund researchers, projects and facilities outside its Alexandria, Virginia, headquarters, is hitting reverse on its mission.

Under pressure from the Trump administration, the National Science Foundation (NSF), a $9 billion agency funding scientific research that has made America great, has canceled over a thousand grants and slowed new funding. That's just the beginning and will get way worse unless Congress intervenes.

01.05.2025 19:25 — 👍 238    🔁 104    💬 3    📌 6

Dear weather and climate dynamics enthusiasts, an exciting session with 24 contributions (orals+posters) awaits you at EGU25 **tomorrow**, Monday 28.05, from 14 to 18 in rooms M1 and X5.

Hope to see many of you there at the "Atmospheric Rossby Waves and Jet Dynamics" session! 🌬️〰️🌀

27.04.2025 22:14 — 👍 2    🔁 1    💬 0    📌 0
Video thumbnail

An incredible view of a dust storm charging south across Mexico.

21.04.2025 16:51 — 👍 242    🔁 93    💬 5    📌 8
Video thumbnail

Première #galerne (coup de vent brutal sur Pays Basque/Sud Landes) ce soir 18 Avril autour de 19h avec rafales locales proches de 100km/h.
Renversement/renforcement extrêmement rapide des vents au passage d'un front orageux après belle journée de chauffage (Température ~25°C dans le Sud-Ouest)
1/

18.04.2025 14:29 — 👍 36    🔁 10    💬 2    📌 0

Doppler radars for tornado and severe weather rapid warnings, hurricane hunters' flights for improved track and intensity forecasts, weather and climate models used by many stakeholders...

NOAA excellence and contribution to society are under threat. Full support to it and to @ametsoc.org effort!

17.04.2025 20:27 — 👍 1    🔁 0    💬 0    📌 0

You are welcome :) it is algebra-based but very insightful. And free, also for your students :)

In case you need to deepen more specific topics just let me know, and I can easily refer to more advanced tomes.

15.04.2025 20:17 — 👍 1    🔁 0    💬 0    📌 0
Practical Meteorology An Algebra-based Survey of Atmospheric Science - version 1.02b. isbn 978-0-88865-283-6

www.eoas.ubc.ca/books/Practi...

15.04.2025 20:12 — 👍 2    🔁 2    💬 1    📌 0
Post image

One of a meteorologist’s biggest pet peeves is “my app says it’ll be ____”. Weather apps can miss so many details that a meteorologist will know.

Let’s use tomorrow in NYC — my app says it’ll be 78 degrees but rainy. But is that the full story? Spoiler alert… no, it’s not!

28.03.2025 23:38 — 👍 81    🔁 17    💬 4    📌 3
Preview
Science Helps You Thrive: Strong U.S. Scientific Leadership Raises Us All The AMS is a global community committed to advancing weather, water, and climate science and service.

From life-saving weather warnings and cancer treatments to tech breakthroughs, federally funded science drives progress. In an open letter, the AMS urges strong federal science funding to ensure our future.

More: bit.ly/4j6rQGZ

25.03.2025 15:04 — 👍 48    🔁 30    💬 2    📌 6

In Svizzera si puoʻ essere un vero "Eidgenosse" (un "confederato") o magari più informalmente un "Bünzli" 🇨🇭

18.03.2025 06:40 — 👍 4    🔁 0    💬 0    📌 0

🧵: I am getting texts on what scientists should do in this perilous and scary moment. My advice: your biggest power is to organize through your professional societies. A few ideas -

23.01.2025 21:46 — 👍 688    🔁 292    💬 11    📌 40
OSF

🚨Paper alert 🚨

Do you wonder about how emotions influence climate-friendly outcomes?

@kimdoell.bsky.social and I have analyzed how 8 emotions influence climate beliefs, climate policy support, sharing climate messages, and climate behavior across 63 countries.

We found that... 1/

19.02.2025 18:49 — 👍 65    🔁 16    💬 4    📌 6
Preview
Doge staffers enter Noaa headquarters and incite reports of cuts and threats Members reportedly sought access to IT systems at agency that Project 2025 has called ‘harmful to US prosperity’

www.theguardian.com/us-news/2025...

10.02.2025 20:09 — 👍 48    🔁 12    💬 5    📌 1
Preview
Japan sets new national 12-hour snowfall record with 1.29 m (4 feet) in Hokkaido A record-breaking 1.29 m (4 feet) of snow fell in Obihiro, Japan, within just 12 hours on February 4, 2025, setting a new national record for 12-hour snowfall and leaving cars stranded in deep snow.

129 cm di neve in 12 ore a Obihiro (Hokkaido), nuovo record nazionale.
A record-breaking 1.29m of snow fell in Obihiro, Japan, within just 12 hours on February 4, 2025, setting a new national record for 12-hour snowfall and leaving cars stranded in deep snow. 1/2

watchers.news/2025/02/04/j...

06.02.2025 16:42 — 👍 101    🔁 19    💬 2    📌 1
Post image

Aumento de las frecuencias de bloqueo en simulaciones de modelos climáticos idealizados de muy alta resolución, por @bernat_jimenez

igeo.ucm-csic.es/aum...
#IGEOinvestiga

28.01.2025 08:24 — 👍 19    🔁 11    💬 0    📌 1

Interesting read!
There are many neopositivist and even "messianic" expectations about AGI, I hope we will soon have more realistic expectations about that "bubble", too.

27.01.2025 18:22 — 👍 1    🔁 0    💬 0    📌 0
Video thumbnail

It's no exaggeration to say today brought a truly historical weather event to the Gulf Coast - lots of places all the way down to the water got over 6-8 inches of snow, shattering records going as far back as 1895 in some places.

Let's review what caused this historic event 🧵

22.01.2025 02:25 — 👍 351    🔁 78    💬 18    📌 9

This drastic circulation change indicates that the large-scale flow configuration has to be fully reconfigured over the North Atlantic after the cold spell.

Does such a pattern shift happen as a result of the cold spell, or is the cold spell a byproduct of it? That's an open question imo. (4/4)

21.01.2025 16:12 — 👍 2    🔁 0    💬 0    📌 0

The risk of windstorms over the North Sea region remains significantly high up to 7-10 days after the cold spell.
This is consistent with the zonal flow pattern expected in the next few days over the North Atlantic and "seen" by medium-range models. (3/4)

bsky.app/profile/simo...

21.01.2025 16:07 — 👍 0    🔁 0    💬 1    📌 0

@jriboldi is following 20 prominent accounts